I am willing to apply for Pakistan Navy SSC 2014-A

I Have few questions those who passed the stages or have information please reply

1 - I have excess weight and grown chest can anybody suggest me any product to use before the induction stars so that I can apply for the post

2 - What is the exact range of weight for a 5.4 Feet guy.

3 - I have a week eyesight I consulted to different doctors and even in PN Shifa I cannot wear glasses because without wearing i can see things more clear then by wearing glasses is there any solution for that.